Parse request directly out of client buffer

Coalesce client buffer first, then parse client request directly from
buffer. This avoid 1460 byte limit on client hello request handshake.
Thanks Benjamin Denozière for pointing this out.
Merge pull request #78 from dlundquist/coalesce-buffer

Parse request directly out of client buffer
Gcov wrapper script
Working on TLS parser test coverage
More buffer tests
autoconf weirdnesses: include config.rpath

This should fix #76, also added AM_PROG_CC_C_O required by automake <
1.14.
Merge remote-tracking branch 'github/master' into nonblocking-connect

Conflicts:
	src/connection.c